Hi everyone, The Tomcat project has brought a change in the way they handle RequestDispatcher (see https://bz.apache.org/bugzilla/show_bug.cgi?id=59317) which is causing regressions. Thus for the moment you should **not** use the following Tomcat versions: • 9.0.x for 9.0.0.M5 onwards • 8.5.x for 8.5.1 onwards • 8.0.x for 8.0.34 onwards • 7.0.x for 7.0.70 onwards (See also http://jira.xwiki.org/browse/XWIKI-13556 for more details) I’ve also added a warning on: http://platform.xwiki.org/xwiki/bin/view/AdminGuide/InstallationTomcat Thanks -Vincent